Delay start of bootanimation until after the Runtime APEX is mounted.

It depends on libdexfile_external and libnative{bridge,helper,loader} which
are provided by the Runtime APEX.

Test: flash & boot
Test: atest CtsJdwpTestCases
Bug: 113373927
Change-Id: Id9a78f9adb4c928ab4c91fda0ee3ea4b13eed592
diff --git a/cmds/bootanimation/bootanim.rc b/cmds/bootanimation/bootanim.rc
index 469c964..1b3c32b 100644
--- a/cmds/bootanimation/bootanim.rc
+++ b/cmds/bootanimation/bootanim.rc
@@ -2,6 +2,7 @@
     class core animation
     user graphics
     group graphics audio
+    updatable
     disabled
     oneshot
     writepid /dev/stune/top-app/tasks